A giant scaphite from the Turonian (upper Cretaceous) of the western interior of the United States
By: by William A. Cobban and W. James Kennedy.
Contributors: Kennedy, W. J.
Series: U.S. Geological Survey bulletin -- 1934-A; Shorter contributions to paleontology and stratigraphy
Publisher: U.S. G.P.O.
Published: 1991
Place of publication: [Washington
Language: eng
Subjects: Ammonoidea -- West (U.S.); Paleontology -- West (U.S.) -- Cretaceous.; Paleontology -- Cretaceous.
Notes: "Description and illustrations of a new species from the Carlile Shale of South Dakota."

Includes bibliographical references (p. 2).